New infrared calibration technology for CO2 concentration measurement with high accuracy, small drift and life.
485 communication, for -RTU standard communication protocol, communication address and baud rate can be set, the est communication distance is 2000 mete .
The product adopts a wall-mounted waterproof case, which is convenient to install and has a high .
Condition: 100% Brand New
Item Type: CO2 Transmitter
Model: -co2-N01-2
Material: PVC
: IP65
Measuring Range: 400-5000PPm
Power Supply: 10-30V
Average Current: CO2 Accuracy: +Celsius- (40ppm+3%F S) (25 celsius )
Stability: Non-linearity: Data Update Time: 2s
Output Signal: 485
Product Size: Approx. 11.7 x 11.3 x 4.2 cm Celsius 4.6 x 4.4 x 1.7 in
Weight: Approx. 177g Celsius 6.2oz
Wiring :
Line Color Description
Power Brown Power Supply Positive (10-30V )
Black Power Supply Negative
Communication Yellow 485-A
Blue 485-B
Basic Communication Paramete :
Encoding 8-bit binary
Data Bits 8 Bits
Parity Check Bit No
Stop Bit 1 Bit
Error Check CRC (Redundant Cyclic )
Baud Rate 2400bitCelsiuss, 4800bitCelsiuss, 9600bitCelsiuss can be set, factory default is 4800bitCelsiuss
Interface Description:
Wide voltage power input 10.30V is acceptable. When wiring the 485 signal line, please note that the two A\B lines cannot be reve ed, and the addresses of multiple devices on the bus must not conflict.
Common Problems and Solutions:
Possible reasons why the equipment cannot connect to the PLC or computer:
1) The computer has multiple COM ports, and the selected port is incorrect.
2) The address is wrong, or there are devices with duplicate addresses (the factory default is 1).
3) Baud rate, check mode, data bit, stop bit are error.
4) The host polling interval and waiting for response time are too short, both need to be set 200ms.
5) The 485 bus is disconnected, or the A and B wires are reve ed.
6) If there are too many devices or the wiring is too , power should be provided nearby, add a 485 intensifier, and increase the 120 Ohm terminal resistance.
7) The USB to 485 driver is not installed or damaged.
8) The equipment is damaged.
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